You may find it convenient to create links whose destinations depend upon
results of tests. One can use
AC_CONFIG_COMMANDS but the
creation of relative symbolic links can be delicate when the package is
built in a directory different from the source directory.
AC_OUTPUT link each of the existing files source to
the corresponding link name dest. Makes a symbolic link if
possible, otherwise a hard link if possible, otherwise a copy. The
dest and source names should be relative to the top level
source or build directory. This macro is one of the instantiating
macros; see Configuration Actions.
For example, this call:
creates in the current directory host.h as a link to srcdir/config/$machine.h, and object.h as a link to srcdir/config/$obj_format.h.
The tempting value ‘.’ for dest is invalid: it makes it impossible for ‘config.status’ to guess the links to establish.
One can then run:
./config.status host.h object.h
to create the links.